Geodesic
Hopf algebra structure $H^{\sigma-R}$ with two sided invertible 2-cocycle
Commentationes Mathematicae Universitatis Carolinae, Tome 40 (1999) no. 4, pp. 635-650.

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In this paper, we study the $H^{\sigma-R}$ type Hopf algebras and present its braided and quasitriangular Hopf algebra structure. This generalizes well-known results on $H^{\sigma }$ and $H^R$ type Hopf algebras. Finally, the classification of $H^{\sigma -R}$ type Hopf algebras is given.
Classification : 16W30, 81R50
Keywords: Hopf algebra; $2$-cocycle; braided Hopf algebra 
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     title = {Hopf algebra structure $H^{\sigma-R}$ with two sided invertible 2-cocycle},
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Wang, Shuanhong; Wang, Dingguo. Hopf algebra structure $H^{\sigma-R}$ with two sided invertible 2-cocycle. Commentationes Mathematicae Universitatis Carolinae, Tome 40 (1999) no. 4, pp. 635-650. http://geodesic.mathdoc.fr/item/CMUC_1999__40_4_a3/